混合胶束溶液中丙烯酰胺聚合反应

应用热动力学１．５级反应的时间变量法,在２０℃和３０℃下研究了表面活性剂复配混合胶束溶液中,以ＮａＨＳＯ３为单组分引发剂的丙烯酰胺聚合反应。结果表明,阳,阴与两性离子表面活性剂复配混合胶束体系（ＣＴＡＢ／ＬＳＳ,ＴＴＡＢ／ＬＳＳ,ＳＤＳ／ＬＳＳ）对聚合反应有明显的催化作用,非与阳离子表面活性剂复配混合胶束体系（Ｂｒｉｊ３５／ＣＴＡＢ,Ｂｒｉｊ３５／ＴＴＡＢ,Ｂｒｉｊ３５／ＤＴＡＢ０对该反应有小的催     

NaNO2—NaOAc—NCOONa三元体系相图研究

采用目视变温法及ＤＴＡ法对ＮａＮＯ２－ＮａＯＡｃ－ＨＣＯＯＮａ三元体系的固－液平衡作了研究，实验发现体系为一般共熔型，其低共熔点为１６０℃，５％ＮａＮＯ２，５０％ＨＣＯＯＮａ。     

Cr_2O_3对硫铝酸盐水泥的矿化作用研究

用直接法掺加Ｃｒ２Ｏ３烧制了绿色硫铝酸盐水泥。在实验条件下，通过ＤＴＡ测试发现Ｃｒ２Ｏ３能降低ＣａＣＯ３的分解温度（１０～１９℃）和开始分解温度（２７～３５℃），并能促进ＣａＯ的吸收，从而使水泥所测试的各龄期强度均有提高。     

络合滴定测定有机砷化合物中的砷

介绍氧瓶或消化分解ＬａＣｌ３－ＥＤＴＡ和ＹＣｌ３－ＥＤＴＡ法测定有机砷化合物中砷的新方法。Ｌａｃｌ３－ＥＤＴＡ法适用于氧瓶分解，样品含硫有干扰：ＹＣｌ３－ＥＤＴＡ法不受ＳＯ＾２－４干扰，因而不适用于以硫酸为主要消化剂的消化分解和测定，测定误差＜±０．３０％。     

QDTA/T/EGD/GC在线联用技术 ⅩⅡ.倍半氧化羧乙基锗(Ge-132)热分解反应历程的研究

应用ＤＴＡ／Ｔ／ＥＧＤ／ＧＣ在线联用技术，对倍半氧化羧乙基锗（Ｇｅ－１３２）在Ｎ２气氛中的热分解反应历程（室温～９８０℃）进行了研究。依据ＤＴＡ／Ｔ／ＥＧＤ／ＧＣ提供的信息，分别对２２０℃、３５０℃、６５０℃、８００℃、９００℃、９８０℃等反应温度下的热分解残物，应用ＸＲＤ仪进行了物相鉴定，并测定了Ｇｅ－１３２在Ｎ２气氛中（室温～９３０℃）的ＴＧ／ＤＴＧ曲线。对ＤＴＡ曲线上显示的五个吸热效应和一个放热效应的性质作出了判断和验证，并对该热分解反应中逸出气的组成演变、残物中的Ｇｅ和ＧｅＯ２晶相的析出以及ＧｅＯ２在高温下转化为Ｇｅ的反应历程进行了探讨。     

脂质体作为钆中子俘获治疗肿瘤药物载体的跨膜动力学及？…

制备和表征了包埋Ｇｄ－ＥＤＴＡ的脂质体，测定了ｐＨ，离子强度，缓冲液组成及温度对Ｇｄ－ＥＤＴＡ脂质体的影响，比较了Ｇｄ－ＥＤＴＡ脂质体和Ｇｄ－ＥＤＴＡ被肿瘤细胞摄入的动力学曲线。结果表明，Ｇｄ－ＥＤＴＡ脂质体在３７℃和生理条件下最稳定，肿瘤细胞摄入Ｇｄ－ＥＤＴＡ脂质快速率是Ｇｄ－ＥＤＴＡ的８倍，而释放Ｇｄ的速率，Ｇｄ－ＥＤＴＡ脂质体远远低于Ｇｄ－ＥＤＴＡ，这些结果提供了脂质体包埋Ｇｄ－ＥＤＴＡ作为     

针刺补肾温阳通络法治疗糖尿病周围神经病变68例

目的：观察针刺“补肾温阳通络”法治疗糖尿病周围神经病变（ＢＰＮ）的临床疗效。方法：以气海、关元、七推夹肾、肾愈米穴,行深刺补法,结合雪芝、黄芪闰注射及电针治疗ＤＰＮ患者６８例,观察其对ＤＰＮ患者临床症状及神经传导速度的改善作用。结果：针刺后各临床症状的改善率为７５％￣９５．３％不等,神经传导速度（ＮＣＶ）显著升高。结论：针刺补肾温阳通络法可有铲改善ＤＰＮ校正症状及神经功能。     

碱性介质中二羟基二过碘酸合镍(IV)配离子氧化天冬氨酸的反应动力学及机理

在碱性介质中于 ２０－３５℃用分光光度法研究了二羟基二过碘酸合镍（ＩＶ）配离子 （ＤＤＮ）氧化天冬氨酸的动力学。结果表明,反应对［Ｎｉ（ＩＶ）］为一级,对天冬氨酸为正分数级。准 一级速率常数（Ｋｏｂｓ）随［ＯＨ－］增加而减小,１／ｋｏｂｓ对［ｉｏ－４］有线性关系,表明二羟基一过碘酸合镍 （ＩＶ）配离子（ＤＭＮ）是氧化剂的活性物种。无盐效应且未检出自由基的存在。据此提出了包括 ＤＰＮ和ＭＰＮ以及天冬氨酸存在前期平衡的反应机理,并求出相应的活化参数。     

杂环偶氮苯甲酸类化合物作为分析试剂的研究──(IV)2-(4 5-二甲基噻唑偶氮)-5-二甲氨基苯甲酸与钯的显色反应

研究了Ｐｄ－ＤＭＴＡＭＢ－ＣＴＭＡＢ体系的显色条件及性质。在ｐＨ３～６时，形成稳定的配合物。λｍａｘ为６９５ｎｍ，对比度为１７５ｎｍ；ε＝６．６５×１０４，该显色体系不为ＥＤＴＡ所破坏，而其他金属离子的配合物会被ＥＤＴＡ所破坏而褪色，方法的选择性好。     

正负离子表面活性剂混合溶液的增溶作用

采用分光光度法,测定了十六烷基三甲基溴化铵（ＣＴＡＢ）－十二烷基硫酸钠混合体系在不同的条件下对苯,甲苯的增溶作用。结果表明：在固定ＣＴＡＢ浓度为０．０００１ｍｏｌ．Ｌ－３的条件下,改变ＳＤＳ的浓度或在ＣＴＡＢ－ＳＤＳ混合体系中改变ＮａＢｒ浓度对苯、甲苯的增溶能力呈“Ｖ”字形曲线而变化,随着温度的升高,所有体系的增溶能力都呈增大趋势。     

Characterization of Ordovician carbonate reservoirs, southeastern Saskatchewan, Canada

The discovery of the prolific Ordovician Red River reservoirs in 1995 in southeastern Saskatchewan was the catalyst for extensive exploration activity which resulted in the discovery of more than 15 new Red River pools. The best yields of Red River production to date have been from dolomite reservoirs. Understanding the processes of dolomitization is, therefore, crucial for the prediction of the connectivity, spatial distribution and heterogeneity of dolomite reservoirs.The Red River reservoirs in the Midale area consist of 3～4 thin dolomitized zones, with a total thickness of about 20 m, which occur at the top of the Yeoman Formation. Two types of replacement dolomite were recognized in the Red River reservoir: dolomitized burrow infills and dolomitized host matrix. The spatial distribution of dolomite suggests that burrowing organisms played an important role in facilitating the fluid flow in the backfilled sediments. This resulted in penecontemporaneous dolomitization of burrow infills by normal seawater. The dolomite in the host matrix is interpreted as having occurred at shallow burial by evaporitic seawater during precipitation of Lake Almar anhydrite that immediately overlies the Yeoman Formation. However, the low δ18O values of dolomited burrow infills (-5.9‰～ -7.8‰, PDB) and matrix dolomites (-6.6‰～ -8.1‰, avg. -7.4‰ PDB) compared to the estimated values for the late Ordovician marine dolomite could be attributed to modification and alteration of dolomite at higher temperatures during deeper burial, which could also be responsible for its 87Sr/86Sr ratios (0.7084～0.7088) that are higher than suggested for the late Ordovician seawaters (0.7078～0.7080). The trace amounts of saddle dolomite cement in the Red River carbonates are probably related to "cannibalization" of earlier replacement dolomite during the chemical compaction.     

A computer generator for randomly layered structures

AcomputergeneratorforrandomlylayeredstructuresYUJia shun1,2,HEZhen hua2(1.TheInstituteofGeologicalandNuclearSciences,NewZealand;2.StateKeyLaboratoryofOilandGasReservoirGeologyandExploitation,ChengduUniversityofTechnology,China)Abstract:Analgorithmisintrod…     

海南岛地体及其毗邻陆缘晚中生代—新生代古地磁研究和构造演化

本文叙述了对海南岛及其毗邻大陆边缘白垩纪到第四纪地层岩石进行古地磁研究的全部工作过程。通过分析岩石中剩余磁矢量的磁偏角及磁倾角的变化,提出海南岛白垩纪以来经历的构造演化模式如下:早期伴随顺时针旋转而向南迁移,后期伴随逆时针转动并向北运移。联系该地区及邻区的地质、地球物理资料,对海南岛上述的构造地体运动提出以下认识:北部湾内早期有一拉张作用,主要是该作用使湾内地壳显著伸长减薄,形成北部湾盆地。从而导致了海南岛的早期构造运动,而海南岛后期的构造运动则主要是受南海海底扩张的影响。海南地体运动规律的阐明对于了解北部湾油气盆地的形成演化有重要的理论和实际意义。     

Exciton Seebeck in Molecular Systems

Various applications relevant to the exciton dynamics,such as the organic solar cell,the large-area organic light-emitting diodes and the thermoelectricity,are operating under temperature gradient.The potential abnormal behavior of the exicton dynamics driven by the temperature difference may affect the efficiency and performance of the corresponding devices.In the above situations,the exciton dynamics under temperature difference is mixed with     

Achieving Unusual States of Matter Under High Pressure

The elongation method,originally proposed by Imamura was further developed for many years in our group.As a method towards O(N)with high efficiency and high accuracy for any dimensional systems.This treatment designed for one-dimensional(ID)polymers is now available for three-dimensional(3D)systems,but geometry optimization is now possible only for 1D-systems.As an approach toward post-Hartree-Fock,it was also extended to     

《Chinese Science Bulletin》SUBJECT INDEX TO VOLUME 59(2014)

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An on-line scaling method for improving scalability of a database cluster

The explosive growth of the Internet and database applications has driven database to be more scalable and available, and able to support on-line scaling without interrupting service. To support more client's queries without downtime and degrading the response time, more nodes have to be scaled up while the database is running. This paper presents the overview of scalable and available database that satisfies the above characteristics. And we propose a novel on-line scaling method. Our method improves the existing on-line scaling method for fast response time and higher throughputs. Our proposed method reduces unnecessary network use, i.e. , we decrease the number of data copy by reusing the backup data. Also, our on-line scaling operation can be processed parallel by selecting adequate nodes as new node. Our performance study shows that our method results in significant reduction in data copy time.     

An improved R-tree based on childnode''s probability

R-Tree is a good structure for spatial searching. But in this indexing structure,either the sequence of nodes in the same level or sequence of traveling these nodes when queries are made is random. Since the possibility that the object appears in different MBR which have the same parents node is different, if we make the subnode who has the most possibility be traveled first, the time cost will be decreased in most of the cases. In some case, the possibility of a point belong to a rectangle will shows direct proportion with the size of the rectangle. But this conclusion is based on an assumption that the objects are symmetrically distributing in the area and this assumption is not always coming into existence. Now we found a more direct parameter to scale the possibility and made a little change on the structure of R-tree, to increase the possibility of founding the satisfying answer in the front sub trees. We names this structure probability based arranged R-tree (PBAR-tree).     

Integrating GIS Web services based on mediating architecture

The geographic information service is enabled by the advancements in general Web service technology and the focused efforts of the OGC in defining XML-based Web GIS service. Based on these models, this paper addresses the issue of services chaining,the process of combining or pipelining results from several interoperable GIS Web Services to create a customized solution. This paper presents a mediated chaining architecture in which a specific service takes responsibility for performing the process that describes a service chain. We designed the Spatial Information Process Language (SIPL) for dynamic modeling and describing the service chain, also a prototype of the Spatial Information Process Execution Engine (SIPEE) is implemented for executing processes written in SIPL. Discussion of measures to improve the functionality and performance of such system will be included.     

Tracking data management using topology of moving object database system for moving object constrained trajectory in LBS application

Advances in wireless technologies and positioning technologies and spread of wireless devices, an interest in LBS (Location Based Service) is arising. To provide location based service, tracking data should have been stored in moving object database management system (called MODBMS) with proper policies and managed efficiently. So the methods which acquire the location information at regular time intervals then, store and manage have been studied. In this paper, we suggest tracking data management techniques using topology that is corresponding to the moving path of moving object. In our techniques, we update the MODBMS when moving object arrived at a street intersection or a curved road which is represented as the node in topology and predict the location at past and future with attribute of topology and linear function. In this technique, location data that are corresponding to the node in topology are stored, thus reduce the number of update and amount of data. Also in case predicting the location,because topology are used as well as existing location information, accuracy for prediction is increased than applying linear function or spline function.